<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>02-基本操作</title>
    <script src="../js/jquery-3.6.0.js"></script>
    <script>

    </script>
</head>
<body>
<form action="#">
    用户名：<input type="text" name="username"id="username">
    提交：<input type value="提交">
</form>
</body>
</html>
